CVE-2014-8167 in vdsm
Summary
by MITRE
vdsm and vdsclient does not validate certficate hostname from another vdsm which could facilitate a man-in-the-middle attack
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Analysis
by VulDB Data Team • 03/04/2025
The vulnerability identified as CVE-2014-8167 affects the Virtual Desktop and Server Management (vdsm) and vdsclient components within Red Hat Enterprise Virtualization environments. This security flaw resides in the certificate validation mechanism that governs secure communications between virtualization hosts and management systems. The issue specifically manifests when vdsm and vdsclient fail to properly validate the hostname contained within SSL/TLS certificates presented by other vdsm instances during authentication processes. This weakness creates a critical gap in the cryptographic security framework that protects virtualized environments from unauthorized access and data interception.
The technical implementation of this vulnerability stems from insufficient hostname verification during SSL/TLS certificate validation procedures. When vdsm instances communicate with each other, they establish secure connections using certificates that should contain specific hostname information to verify the authenticity of the communicating parties. However, the flawed validation logic in these components allows connections to proceed even when the certificate hostname does not match the expected target host. This validation failure represents a direct violation of the certificate validation standards outlined in industry best practices and security frameworks such as those referenced in CWE-295, which addresses improper certificate validation. The vulnerability essentially permits a malicious actor to present a valid certificate for a different hostname, thereby bypassing the intended security controls.
The operational impact of this vulnerability is severe and multifaceted within virtualized environments. An attacker positioned in a man-in-the-middle position could exploit this weakness to intercept, modify, or redirect communications between vdsm instances, potentially gaining access to sensitive management information, virtual machine configurations, or control commands. This compromise could lead to complete system takeover, unauthorized virtual machine operations, data exfiltration, or disruption of critical virtualization services. The vulnerability particularly affects Red Hat Enterprise Virtualization deployments where multiple hosts communicate securely through the vdsm framework, making it a significant threat to enterprise virtualization infrastructure. The attack vector aligns with ATT&CK technique T1046 which covers network service scanning and T1566 which involves credential harvesting through network-based attacks.
Mitigation strategies for CVE-2014-8167 require immediate implementation of certificate validation enhancements within the vdsm and vdsclient components. Organizations should ensure that all vdsm instances enforce strict hostname verification against certificate subject alternative names and common names, implementing proper certificate validation routines that align with RFC 2818 and RFC 6125 standards. System administrators must also consider implementing additional network security controls such as certificate pinning, enhanced monitoring of inter-host communications, and regular certificate audits to detect potential misuse. The vulnerability demonstrates the critical importance of maintaining proper cryptographic validation procedures in distributed systems, particularly in virtualization environments where secure inter-host communication is essential for maintaining system integrity and preventing unauthorized access to virtualized resources. Updates and patches provided by Red Hat should be applied immediately to address this validation weakness and restore proper security controls within the virtualization infrastructure.